# 1918 United States Senate elections

The 1918 United States Senate elections were held throughout 1918, the midpoint of Woodrow Wilson's second term as president. This was the first election since the ratification of the 17th Amendment that all 32 Class 2 senators were subject to direct or popular election, making them the final class under the old system of being selected by state legislatures. Special elections were also held to fill vacancies.
Republicans gained a slim 2-seat control after picking a net of 6 seats up. This came after an April 1918 special election where they flipped a seat in Wisconsin.

## Gains, losses, and holds
### Retirements

Three Republicans and one Democrat retired instead of seeking re-election. Two Republicans retired instead of seeking election to finish the unexpired terms, one Democrat retired instead of seeking election to a full term and two Democrats retired instead of seeking election to finish the unexpired terms.
| State | Senator | Replaced by |
| Kentucky | George B. Martin | Augustus O. Stanley |
| Louisiana (special) | Walter Guion | Edward J. Gay |
| Michigan | William Alden Smith | Truman H. Newberry |
| New Hampshire (special) | Irving W. Drew | George H. Moses |
| New Hampshire | Henry F. Hollis | Henry W. Keyes |
| New Jersey | David Baird | Walter E. Edge |
| Oregon (special) | Charles L. McNary | Frederick W. Mulkey |
| South Carolina (special) | Christie Benet | Nathaniel B. Dial |
| West Virginia | Nathan Goff Jr. | Davis Elkins |

### Defeats

Eight Democrats and one Republican sought re-election but lost in the primary or general election.
| State | Senator | Replaced by |
| Colorado | John F. Shafroth | Lawrence C. Phipps |
| Delaware | Willard Saulsbury Jr. | L. Heisler Ball |
| Georgia | Thomas W. Hardwick | William J. Harris |
| Illinois | J. Hamilton Lewis | Medill McCormick |
| Kansas | William H. Thompson | Arthur Capper |
| Massachusetts | John W. Weeks | David I. Walsh |
| Mississippi | James K. Vardaman | Pat Harrison |
| Missouri | Xenophon P. Wilfley | Selden P. Spencer |
| South Carolina (special) | Christie Benet | William P. Pollock |

### Deaths

One Democrat died on October 21, 1917, and his seat remained vacant until an April 1918 election.
| State | Senator | Replaced by |
| Wisconsin | Paul O. Husting | Irvine Lenroot |

### Post-election changes

| State | Senator | Replaced by |
| Alabama | John H. Bankhead | Braxton B. Comer |
| Virginia | Thomas S. Martin | Carter Glass |
Source: United States Senate Official Website

## Change in composition
### Before the elections

| | | D$_1$ | D$_2$ | D$_3$ | D$_4$ | D$_5$ | D$_6$ | D$_7$ | D$_8$ |
| D$_{18}$ | D$_{17}$ | D$_{16}$ | D$_{15}$ | D$_{14}$ | D$_{13}$ | D$_{12}$ | D$_{11}$ | D$_{10}$ | D$_9$ |
| D$_{19}$ | D$_{20}$ | D$_{21}$ | D$_{22}$ | D$_{23}$ | D$_{24}$ | D$_{25}$ | D$_{26}$ | D$_{27}$ | D$_{28}$ |
| D$_{38}$ Kan. Ran | D$_{37}$ Ill. Ran | D$_{36}$ Idaho Ran | D$_{35}$ Ga. Ran | D$_{34}$ Del. Ran | D$_{33}$ Colo. Ran | D$_{32}$ Ark. Ran | D$_{31}$ Ala. Ran | D$_{30}$ | D$_{29}$ |
| D$_{39}$ La. (reg) Ran | D$_{40}$ La. (sp) Ran | D$_{41}$ Mo. (sp) Ran | D$_{42}$ Mont. Ran | D$_{43}$ Nev. (sp) Ran | D$_{44}$ N.H. (reg) Retired | D$_{45}$ N.C. Ran | D$_{46}$ Okla. Ran | D$_{47}$ S.C. (reg) & S.C. (sp) Ran | D$_{48}$ Tenn. Ran |
| Majority → | Majority → | Majority → | Majority → | Majority → | Majority → | Majority → | Majority → | Majority → | D$_{49}$ Va. Ran |
| R$_{39}$ N.J. (sp) RanN.J. (reg) Retired | R$_{40}$ N.M. Ran | R$_{41}$ Ore. (sp) RetiredOre. (reg) Ran | R$_{42}$ R.I. Ran | R$_{43}$ S.D. Ran | R$_{44}$ Texas Ran | R$_{45}$ W.Va. Retired | D$_{51}$ Wyo. Ran | D$_{50}$ Wis. Died | D$_{49}$ Va. Ran |
| R$_{38}$ N.H. (sp) Retired | R$_{37}$ Neb. Ran | R$_{36}$ Miss. Ran | R$_{35}$ Minn. Ran | R$_{34}$ Mich. Retired | R$_{33}$ Mass. Ran | R$_{32}$ Me. Ran | R$_{31}$ Ky. Retired | R$_{30}$ Iowa Ran | R$_{29}$ Idaho (reg) Ran |
| R$_{19}$ | R$_{20}$ | R$_{21}$ | R$_{22}$ | R$_{23}$ | R$_{24}$ | R$_{25}$ | R$_{26}$ | R$_{27}$ | R$_{28}$ |
| R$_{18}$ | R$_{17}$ | R$_{16}$ | R$_{15}$ | R$_{14}$ | R$_{13}$ | R$_{12}$ | R$_{11}$ | R$_{10}$ | R$_9$ |
| | | R$_1$ | R$_2$ | R$_3$ | R$_4$ | R$_5$ | R$_6$ | R$_7$ | R$_8$ |

### Elections results

| | | D$_1$ | D$_2$ | D$_3$ | D$_4$ | D$_5$ | D$_6$ | D$_7$ | D$_8$ |
| D$_{18}$ | D$_{17}$ | D$_{16}$ | D$_{15}$ | D$_{14}$ | D$_{13}$ | D$_{12}$ | D$_{11}$ | D$_{10}$ | D$_9$ |
| D$_{19}$ | D$_{20}$ | D$_{21}$ | D$_{22}$ | D$_{23}$ | D$_{24}$ | D$_{25}$ | D$_{26}$ | D$_{27}$ | D$_{28}$ |
| D$_{38}$ Mass. Gain | D$_{37}$ La. (sp) Hold | D$_{36}$ La. (reg) Re-elected | D$_{35}$ Ky. Hold | D$_{34}$ Idaho Elected | D$_{33}$ Ga. Hold | D$_{32}$ Ark. Re-elected | D$_{31}$ Ala. Re-elected | D$_{30}$ | D$_{29}$ |
| D$_{39}$ Miss. Hold | D$_{40}$ Mont. Re-elected | D$_{41}$ Nev. Elected | D$_{42}$ N.C. Re-elected | D$_{43}$ Okla. Re-elected | D$_{44}$ S.C. (reg) & S.C. (sp) Hold | D$_{45}$ Tenn. Re-elected | D$_{46}$ Texas Re-elected | D$_{47}$ Va. Re-elected | R$_{49}$ Wyo. Re-elected |
| R$_{49}$ Wyo. Re-elected |||||||||
| R$_{39}$ Neb. Re-elected | R$_{40}$ N.H. (reg) Gain | R$_{41}$ N.H. (sp) Hold | R$_{42}$ N.J. (sp) ElectedN.J. (reg) Hold | R$_{43}$ N.M. Re-elected | R$_{44}$ Ore. (sp) HoldOre. (reg) Elected | R$_{45}$ R.I. Re-elected | R$_{46}$ S.D. Re-elected | R$_{47}$ W.Va. Hold | R$_{48}$ Wis. Gain |
| R$_{38}$ Mo. Gain | R$_{37}$ Minn. Re-elected | R$_{36}$ Mich. Hold | R$_{35}$ Me. Re-elected | R$_{34}$ Kan. Gain | R$_{33}$ Iowa Re-elected | R$_{32}$ Ill. Gain | R$_{31}$ Idaho (reg) Re-elected | R$_{30}$ Del. Gain | R$_{29}$ Colo. Gain |
| R$_{19}$ | R$_{20}$ | R$_{21}$ | R$_{22}$ | R$_{23}$ | R$_{24}$ | R$_{25}$ | R$_{26}$ | R$_{27}$ | R$_{28}$ |
| R$_{18}$ | R$_{17}$ | R$_{16}$ | R$_{15}$ | R$_{14}$ | R$_{13}$ | R$_{12}$ | R$_{11}$ | R$_{10}$ | R$_9$ |
| | | R$_1$ | R$_2$ | R$_3$ | R$_4$ | R$_5$ | R$_6$ | R$_7$ | R$_8$ |
| Key: | D$_#$ Democratic R$_#$ Republican |

## Complete list of races
### Special elections during the 65th Congress

In these special elections, the winner was seated during 1918 or before March 4, 1919; ordered by election date.
| State | Incumbent | Incumbent | Incumbent | Results | Candidates |
| State | Senator | Party | Electoral history | Results | Candidates |
| Wisconsin (Class 3) | Paul O. Husting | Democratic | 1914 | Incumbent died October 21, 1917. New senator elected April 2, 1918. Republican gain. | ▌Y Irvine Lenroot (Republican) 38.73% ▌Joseph E. Davies (Democratic) 35.12% ▌Victor L. Berger (Socialist) 26.09% ▌Anthony J. Benjamin (Prohibition) 0.06% |
| Idaho (Class 3) | John F. Nugent | Democratic | 1918 (appointed) | Interim appointee elected November 5, 1918. | ▌Y John F. Nugent (Democratic) 50.5% ▌Frank R. Gooding (Republican) 49.5%$^{:1442}$ |
| Louisiana (Class 3) | Walter Guion | Democratic | 1918 (appointed) | Interim appointee retired. New senator elected November 5, 1918. Democratic hold. | ▌Y Edward J. Gay (Democratic) Unopposed$^{:1447}$ |
| Missouri (Class 3) | Xenophon P. Wilfley | Democratic | 1918 (appointed) | Interim appointee lost nomination. New senator elected November 5, 1918. Republican gain. | ▌Y Selden P. Spencer (Republican) 52.39% ▌Joseph W. Folk (Democratic) 46.29%$^{:419}$ Others ▌Caleb Lipscomb (Socialist) 1.16% ▌William Wesley Cox (Socialist Labor) 0.16% |
| Nevada (Class 3) | Charles Henderson | Democratic | 1918 (appointed) | Interim appointee elected November 5, 1918. | ▌Y Charles Henderson (Democratic), 47.71% ▌Edwin E. Roberts (Republican) 31.5% ▌Anne Henrietta Martin (Independent) 18.01% ▌Martin Scanlan (Socialist) 2.78%$^{:419}$ |
| New Hampshire (Class 3) | Irving W. Drew | Republican | 1918 (appointed) | Interim appointee retired. New senator elected November 5, 1918. Republican hold. | ▌Y George H. Moses (Republican) 50.76% ▌John B. Jameson (Democratic) 49.24%$^{:1455}$ |
| New Jersey (Class 2) | David Baird | Republican | 1918 (appointed) | Interim appointee elected November 5, 1918. Interim appointee was not a candidate for the next term; see below. | ▌Y David Baird (Republican) 49.17% ▌Charles O. Hennessy (Democratic) 44.64% ▌James M. Reilly (Socialist) 3.82% ▌Grafton Day (Prohibition) 2.38%$^{:419}$ |
| Oregon (Class 2) | Charles L. McNary | Republican | 1917 (appointed) | Interim appointee retired. New senator elected November 5, 1918. Republican hold. Interim appointee was instead elected to the next term; see below. Mulkey took the seat but subsequently resigned so McNary could be re-appointed ahead of the term. | ▌Y Frederick W. Mulkey (Republican) 84.53% ▌Martha Bean (Socialist) 15.47%$^{:1461}$ |
| South Carolina (Class 2) | Christie Benet | Democratic | 1918 (appointed) | Interim appointee lost renomination. New senator elected November 5, 1918. Democratic hold. Neither the interim appointee nor the winner were elected to the next term; see below. | ▌Y William P. Pollock (Democratic) Unopposed$^{:419}$ |

### Elections leading to the 66th Congress

In these general elections, the winners were elected for the term beginning March 4, 1919; ordered by state.
All of the elections involved the Class 2 seats.
| State | Incumbent | Incumbent | Incumbent | Results | Candidates |
| State | Senator | Party | Electoral history | Results | Candidates |
| Alabama | John H. Bankhead | Democratic | 1907 (appointed) 1907 (special) 1911 (early) | Incumbent re-elected. | ▌Y John H. Bankhead (Democratic) Unopposed$^{:1434}$ |
| Arkansas | Joseph T. Robinson | Democratic | 1913 | Incumbent re-elected. | ▌Y Joseph T. Robinson (Democratic) Unopposed$^{:1436}$ |
| Colorado | John F. Shafroth | Democratic | 1913 | Incumbent lost re-election. New senator elected. Republican gain. | ▌Y Lawrence C. Phipps (Republican) 49.49% ▌John F. Shafroth (Democratic) 47.94% ▌P. A. Richardson (Prohibition) 2.58%$^{:429}$ |
| Delaware | Willard Saulsbury Jr. | Democratic | 1913 | Incumbent lost re-election. New senator elected. Republican gain. | ▌Y L. Heisler Ball (Republican) 51.17% ▌Willard Saulsbury Jr. (Democratic) 47.83% ▌William H. Connor (Socialist) 1.0%$^{:429}$ |
| Georgia | Thomas W. Hardwick | Democratic | 1914 (special) | Incumbent lost renomination. New senator elected. Democratic hold. | ▌Y William J. Harris (Democratic) 88.34% ▌G. H. Williams (Republican) 11.66%$^{:1441}$ |
| Idaho | William Borah | Republican | 1907 1913 | Incumbent re-elected. | ▌Y William Borah (Republican) 67.21% ▌Frank L. Moore (Democratic) 32.79%$^{:1442}$ |
| Illinois | J. Hamilton Lewis | Democratic | 1913 (Late) | Incumbent lost re-election. New senator elected. Republican gain. | ▌Y Medill McCormick (Republican) 50.5% ▌J. Hamilton Lewis (Democratic) 44.92% ▌William B. Lloyd (Socialist) 3.91% ▌John M. Francis (Socialist Labor) 0.34%$^{:429}$ |
| Iowa | William S. Kenyon | Republican | 1911 (special) 1913 | Incumbent re-elected. | ▌Y William S. Kenyon (Republican) 65.4% ▌Charles Rollin Keyes (Democratic) 34.6%$^{:1444}$ |
| Kansas | William H. Thompson | Democratic | 1913 | Incumbent lost re-election. New senator elected. Republican gain. | ▌Y Arthur Capper (Republican) 63.69% ▌William H. Thompson (Democratic) 33.73% ▌Eva Harding (Socialist) 2.58%$^{:429}$ |
| Kentucky | George B. Martin | Democratic | 1918 (appointed) | Incumbent retired. New senator elected. Democratic hold. | ▌Y Augustus O. Stanley (Democratic) 50.77% ▌Ben Bruner (Republican) 49.23%$^{:1446}$ |
| Louisiana | Joseph E. Ransdell | Democratic | 1912 | Incumbent re-elected. | ▌Y Joseph E. Ransdell (Democratic) Unopposed$^{:1446}$ |
| Maine | Bert M. Fernald | Republican | 1916 (special) | Incumbent re-elected September 9, 1918. | ▌Y Bert M. Fernald (Republican) 55.4% ▌Earl Newbert (Democratic) 44.6%$^{:1447}$ |
| Massachusetts | John W. Weeks | Republican | 1913 | Incumbent lost re-election. New senator elected. Democratic gain. | ▌Y David I. Walsh (Democratic) 49.67% ▌John W. Weeks (Republican) 45.07% ▌Thomas W. Lawson (Independent) 5.26%$^{:429}$ |
| Michigan | William Alden Smith | Republican | 1911 1913 | Incumbent retired. New senator elected. Republican hold. | ▌Y Truman H. Newberry (Republican) 50.19% ▌Henry Ford (Democratic) 48.47%$^{:429}$ Others ▌E. O. Foss (Socialist) 1.09% ▌William Faull (Prohibition) 0.26% |
| Minnesota | Knute Nelson | Republican | 1895 1901 1907 1913 | Incumbent re-elected. | ▌Y Knute Nelson (Republican) 60.05% ▌Willis G. Calderwood (National) 39.95%$^{:1450}$ |
| Mississippi | James K. Vardaman | Democratic | 1912 | Incumbent lost renomination. New senator elected. | ▌Y Pat Harrison (Democratic) 95.04% ▌Summer W. Rose (Socialist) 4.96%$^{:1451}$ |
| Montana | Thomas J. Walsh | Democratic | 1913 | Incumbent re-elected. | ▌Y Thomas J. Walsh (Democratic) 41.07% ▌Oscar Lanstrum (Republican) 35.79% ▌Jeannette Rankin (National) 23.14%$^{:429}$ |
| Nebraska | George W. Norris | Republican | 1913 | Incumbent re-elected. | ▌Y George W. Norris (Republican) 54.52% ▌John H. Morehead (Democratic) 45.49%$^{:1453}$ |
| New Hampshire | Henry F. Hollis | Democratic | 1913 | Incumbent retired. New senator elected. Republican gain. | ▌Y Henry W. Keyes (Republican) 53.54% ▌Eugene E. Reed (Democratic) 46.46%$^{:1455}$ |
| New Jersey | David Baird | Republican | 1918 (appointed) | Interim appointee retired. New senator elected. Republican hold. Interim appointee (Baird) was elected to finish the current term; see above. | ▌Y Walter E. Edge (Republican) 50.34% ▌George M. La Monte (Democratic) 43.23% ▌James M. Reilly (Socialist) 4.14%$^{:429}$ Others ▌Grafton Day (Prohibition) 1.62% ▌William J. Wallace (Single Tax) 0.66% |
| New Mexico | Albert B. Fall | Republican | 1912 (new state) 1912 (Invalidated) 1913 | Incumbent re-elected. | ▌Y Albert B. Fall (Republican) 51.4% ▌William B. Walton (Democratic) 47.48% ▌W. P. Metcalf (Socialist) 1.12%$^{:429}$ |
| North Carolina | F. M. Simmons | Democratic | 1901 1907 1913 | Incumbent re-elected. | ▌Y F. M. Simmons (Democratic) 60.5% ▌John M. Morehead (Republican) 39.5%$^{:1458}$ |
| Oklahoma | Robert L. Owen | Democratic | 1907 (New state) 1913 | Incumbent re-elected. | ▌Y Robert L. Owen (Democratic) 55.44% ▌W. B. Johnson (Republican) 40.73% ▌C. M. Greenland (Socialist) 3.83%$^{:429}$ |
| Oregon | Charles L. McNary | Republican | 1917 (appointed) | Interim appointee elected to the next term but not to finish the term. Winner appointed to begin next term early when winner of the special election (see above) resigned. | ▌Y Charles L. McNary (Republican) 54.17% ▌Oswald West (Democratic) 42.3% ▌Albert Slaughter (Socialist) 3.53%$^{:429}$ |
| Rhode Island | LeBaron B. Colt | Republican | 1913 | Incumbent re-elected. | ▌Y LeBaron B. Colt (Republican) 51.76% ▌George F. O'Shaunessy (Democratic) 46.24% ▌Frederick W. Hunt (Socialist) 2.0%$^{:429}$ |
| South Carolina | Christie Benet | Democratic | 1918 (appointed) | Interim appointee retired. New senator elected. Democratic hold. Neither the interim appointee nor the winner were elected to finish the current term; see above. | ▌Y Nathaniel B. Dial (Democratic) Unopposed$^{:1463}$ |
| South Dakota | Thomas Sterling | Republican | 1913 | Incumbent re-elected. | ▌Y Thomas Sterling (Republican) 55.07% ▌W. T. Rinehart (Democratic) 38.95% ▌Orville Rafferty (Independent) 5.98%$^{:429}$ |
| Tennessee | John K. Shields | Democratic | 1913 | Incumbent re-elected. | ▌Y John K. Shields (Democratic) 62.17% ▌H. Clay Evans (Republican) 37.83%$^{:1465}$ |
| Texas | Morris Sheppard | Democratic | 1913 (special) | Incumbent re-elected. | ▌Y Morris Sheppard (Democratic) 86.69% ▌J. Webster Flanagan (Republican) 12.41% ▌M. A. Smith (Socialist) 0.9%$^{:429}$ |
| Virginia | Thomas S. Martin | Democratic | 1893 (early) 1899 (early) 1906 1912 | Incumbent re-elected. | ▌Y Thomas S. Martin (Democratic) Unopposed$^{:1468}$ |
| West Virginia | Nathan Goff Jr. | Republican | 1913 | Incumbent retired. New senator elected. Republican hold. | ▌Y Davis Elkins (Republican) 53.53% ▌Clarence W. Watson (Democratic) 45.4% ▌D. M. S. Holt (Socialist) 1.06%$^{:429}$ |
| Wyoming | Francis E. Warren | Republican | 1890 1893 (lost) 1895 1901 1907 1913 | Incumbent re-elected. | ▌Y Francis E. Warren (Republican) 57.77% ▌John Eugene Osborne (Democratic) 42.23% |

## Closest races

Eighteen races had a margin of victory under 10%:
| State | Party of winner | Margin |
| Idaho (special) | Democratic | 1.0% |
| New Hampshire (special) | Republican | 1.52% |
| Kentucky | Democratic | 1.54% |
| Colorado | Republican (flip) | 1.55% |
| Michigan | Republican | 1.72% |
| Delaware | Republican (flip) | 3.34% |
| Wisconsin (special) | Republican (flip) | 3.61% |
| New Mexico | Republican | 3.92% |
| New Jersey (special) | Republican | 4.53% |
| Massachusetts | Democratic (flip) | 4.6% |
| Montana | Democratic | 5.28% |
| Rhode Island | Republican | 5.52% |
| Illinois | Republican (flip) | 5.58% |
| Missouri (special) | Republican (flip) | 6.1% |
| New Hampshire | Republican (flip) | 7.08% |
| New Jersey | Republican | 7.11% |
| West Virginia | Republican | 8.13% |
| Nebraska | Republican | 9.03% |

## Alabama

Alabama election :
| Party | Party | Candidate | Votes | % |
| | Democratic | John H. Bankhead (incumbent) | 54,880 | 100.00 |
| Total votes | Total votes | Total votes | 54,880 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## Arkansas

Arkansas election :
| Party | Party | Candidate | Votes | % |
| | Democratic | Joseph T. Robinson (incumbent) | 78,377 | 100.00 |
| Total votes | Total votes | Total votes | 78,377 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## Colorado

Colorado election :
| Party | Party | Candidate | Votes | % |
| | Republican | Lawrence C. Phipps | 107,726 | 49.49 |
| | Democratic | John F. Shafroth (incumbent) | 104,347 | 47.94 |
| | Prohibition | P. A. Richardson | 5,606 | 2.58 |
| Majority | Majority | Majority | 3,379 | 1.55 |
| Total votes | Total votes | Total votes | 217,679 | 100.00 |
| | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic |

## Idaho
### Idaho (regular)
### Idaho (special)

Incumbent Democratic Senator John Frost Nugent defeated Republican nominee Frank Robert Gooding by a very narrow margin of 1.00% and by 970 votes. Upon his election, John Frost Nugent became the first Democrat ever to have been elected to the United States Senate in Idaho or from Idaho and the first non-Republican to win a United States Senate seat in Idaho or from Idaho since 1901 and the first non-Republican to win the Class 3 Senate seat in Idaho or from Idaho since 1897.

## Illinois

Illinois election$^{:429}$ :
| Party | Party | Candidate | Votes | % |
| | Republican | Medill McCormick | 479,983 | 50.50 |
| | Democratic | James Hamilton Lewis (incumbent) | 426,943 | 44.92 |
| | Socialist | William Bross Lloyd | 37,167 | 3.91 |
| | Socialist Labor | John M. Francis | 3,268 | 0.34 |
| | Prohibition | Frank B. Vennum | 3,151 | 0.33 |
| Majority | Majority | Majority | 53,024 | 5.58 |
| Turnout | Turnout | Turnout | 950,496 | |
| | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic |

## Michigan

1918 United States Senate election in Michigan$^{:429}$ :
| | Republican | Truman H. Newberry | 220,054 | 50.19% |
| | Democratic | Henry Ford | 212,487 | 48.47% |
| | Socialist | Edward O. Foss | 4,763 | 1.09% |
| | Prohibition | William J. Faull | 1,133 | 0.26% |
| Party | Party | Candidate | Votes | % |
| Majority | Majority | Majority | 7,567 | 1.72 |
| Total votes | Total votes | Total votes | 438,437 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## Minnesota

Minnesota election :
| Party | Party | Candidate | Votes | % |
| | Republican | Knute Nelson (incumbent) | 206,428 | 60.05 |
| | National | Willis Calderwood | 137,334 | 39.95 |
| Majority | Majority | Majority | 69,094 | 20.10 |
| Total votes | Total votes | Total votes | 343,762 | 100.00 |
| | Republican hold | Republican hold | Republican hold | Republican hold |

## South Carolina
### South Carolina (regular)

South Carolina Democratic primary :
| Party | Party | Candidate | Votes | % |
| | Democratic | Nathaniel B. Dial | 65,064 | 58.70 |
| | Democratic | Cole L. Blease | 40,456 | 36.50 |
| | Democratic | James F. Rice | 5,317 | 4.80 |
| Majority | Majority | Majority | 24,608 | 22.20 |
| Total votes | Total votes | Total votes | 110,837 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

### South Carolina (special)

South Carolina special Democratic primary :
| Party | Party | Candidate | Votes | % |
| | Democratic | William P. Pollock | 38,816 | 34.91 |
| | Democratic | Thomas H. Peeples | 37,567 | 33.79 |
| | Democratic | Christie Benet (incumbent) | 34,807 | 31.30 |
| Total votes | Total votes | Total votes | 111,190 | 100.00 |
South Carolina special Democratic primary runoff :
| Party | Party | Candidate | Votes | % |
| | Democratic | William P. Pollock | 49,920 | 62.43 |
| | Democratic | Thomas H. Peeples | 30,044 | 37.57 |
| Majority | Majority | Majority | 19,876 | 24.86 |
| Total votes | Total votes | Total votes | 79,964 | 100.00 |
| | Democratic hold | Democratic hold | Democratic hold | Democratic hold |

## Tennessee

General election results :
| Party | Party | Candidate | Votes | % |
| | Democratic | John K. Shields (incumbent) | 98,605 | 62.17% |
| | Republican | Henry Clay Evans | 59,989 | 37.83% |
| Total votes | Total votes | Total votes | 158,594 | 100.00% |

## Wisconsin (special)

Wisconsin election :
| Party | Party | Candidate | Votes | % |
| | Republican | Irvine Lenroot | 163,983 | 38.73 |
| | Democratic | Joseph E. Davies | 148,923 | 35.12 |
| | Socialist | Victor L. Berger | 110,487 | 26.09 |
| | Prohibition | Anthony J. Benjamin | 233 | 0.06 |
| | Write-in | Scattering | 371 | 0.06 |
| Majority | Majority | Majority | 15,060 | 3.61 |
| Total votes | Total votes | Total votes | 423,997 | 100.00 |
| | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic | Republican gain from Democratic |